package com.springboot.exp.exp_2;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.ApplicationEvent;
import org.springframework.context.ApplicationListener;
import org.springframework.stereotype.Component;

public class ApplicationNoticeEvent {

    /**
     * 自定义事件
     */

    static class NoticeEvent extends ApplicationEvent {

        private static final Logger logger= LoggerFactory.getLogger(NoticeEvent.class);

        private final String message;

        public NoticeEvent(String message){
            super(message);
            this.message=message;
            logger.info("添加事件成功！message:{}",message);
        }

        public String getMessage(){ return message; }
    }


    /**
     * 自定义事件监听器，监听{@link NoticeEvent}事件
     */
    @SuppressWarnings("unused")
    @Component
    static class NoticeListener implements ApplicationListener<NoticeEvent> {

        private static final Logger logger = LoggerFactory.getLogger(NoticeListener.class);

        @Override
        public void onApplicationEvent(NoticeEvent event) {
            logger.info("事件监听器获取到NoticeEvent，睡眠当前线程2秒...");
            try{
                Thread.sleep(2000);
            }catch (InterruptedException e){
                e.printStackTrace();
            }
            logger.info("NoticeEvent的message属性是：{}",event.getMessage());
        }
    }
}